Finding the Fourth Proportional to 66,061.71, 91,240.88 and 43,501.56

Step by Step Solution

1. Step 1: Write the proportion equation
   66,061.71 : 91,240.88 = 43,501.56 : x
2. Step 2: Convert to fraction form
   66,061.71/91,240.88 = 43,501.56/x
3. Step 3: Cross multiply
   66,061.71x = 91,240.88 × 43,501.56
4. Step 4: Simplify right side
   66,061.71x = 3,969,120,398.27
5. Step 5: Solve for x
   x = 3,969,120,398.27/66,061.71
6. Step 6: Final answer
   x = 60,082.01